Renette cells are excretory structures in
A) Mollusca
B) Protozoa
C) Nematoda
D) Echinodermata
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i) All living organisms are composed of cells and products of cells, ii) All cells arise from preexisting cells.
C) Cell theory
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Which of the following statements is true about tissue ? A) Cells with different structures but the same function
D) Cells with similar structures and functions
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Which of the following is not an excretory organ ?
Pancreas is not an excretory organ.
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Flame cells are excretory organs in
D) platyhelminthes
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According to the studies of evolution the excretory structures were first seen in one of the following.
B) Platyhelminthes
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Excretory structures appeared for the first time in flatworms belong to the phylum:
(D) Platyhelminthes
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a. How are the hybridoma cells selected from the culture of B-cells and Myeloma cells while fusing them in hybridoma technology?
a. Using HAT medium b. Monoclonal antibody which is used to treat early stages of breast cancer is Herceptin (trastuzumab). It works by attaching itself to HER2 receptors by blocking them from...
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Identify the type of epithelium found in the following cells/ cell structures: 1. Auditory hair cells
1. Sensory epithelium 2. Glandular epithelium 3. Columnar epithelium 4. Ciliated epithelium 5. Transitional epithelium (Compound epithelium)
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Enlist the human excretory organs and their excretory products.
Excretory OrgAnswer: 1. Lungs: Remove CO2 and also water vapour to a considerable extent. Volatile substances present in spices and other food stuff are excreted through lungs 2. Kidneys: Remove nitrogenous waste products...
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Assertion: Cancer is contagious and cells can spread from one person to other. Reason : Cancerous cells are highly differentiated cells.
Correct Answer - D (d)
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